InMotion WS710785 Engine Crankshaft Seal - Front

Overview

InMotion WS710785 is a front differential pinion seal built with fluoro-elastomer material for a secure sealing surface. It helps keep contaminants out and fluid in, supporting reliable differential operation across a wide range of BMW applications.

Compatible With BMW M2, M4, X5, X6, 640i, 335i, and other listed models, this seal is specified for front placement and matches applications that call for a 3.118-inch outside diameter. The WS710785 part number is also useful when verifying the correct seal for service work on BMW driveline components.

Key Features

• Fluoro-elastomer construction for sealing performance and chemical resistance
• Front differential pinion seal application
• 3.118-inch outside diameter on listed fitments
• Precision dimensions for a secure housing interface
• Fits a broad range of BMW models from 2006-2020

Detailed Description

The InMotion WS710785 is engineered as a differential pinion seal for front applications, with dimensions that support a tight fit at the housing bore and shaft interface. Its fluoro-elastomer material is selected for durability in sealing environments where moisture, debris, and fluid retention matter. For BMW owners and technicians, the WS710785 provides a direct service part for maintaining differential integrity on many 3 Series, 5 Series, X Series, Z4, M models, and related variants.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Differential fluid seepage at the pinion area
• Contamination entering the differential housing
• Wear caused by degraded sealing surfaces
• Loss of sealing integrity during driveline service
• Noise or drivability concerns linked to low differential fluid

Installation Notes and Tips

Verify the housing bore, shaft diameter, and outside diameter before installation. This seal is listed for front placement only, so confirm the vehicle application against the fitment table and service specifications before ordering. Clean the sealing surfaces thoroughly and inspect the pinion area for wear or damage that could affect seal performance.

Quality Assurance

InMotion supplies precision-engineered sealing components made from high-quality materials for differential service applications. The WS710785 is built to provide a reliable sealing barrier and consistent fit across the listed BMW applications.